529649 has 2 divisors, whose sum is σ = 529650. Its totient is φ = 529648.

The previous prime is 529637. The next prime is 529657. The reversal of 529649 is 946925.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 322624 + 207025 = 568^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 529649 - 2⁸ = 529393 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (529619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264824 + 264825.

It is an arithmetic number, because the mean of its divisors is an integer number (264825).

2⁵²⁹⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

529649 is a deficient number, since it is larger than the sum of its proper divisors (1).

529649 is an equidigital number, since it uses as much as digits as its factorization.

529649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 529649 is about 727.7698812125. The cubic root of 529649 is about 80.9088544445.

The spelling of 529649 in words is "five hundred twenty-nine thousand, six hundred forty-nine".